Effect of the carbon nanotube length on the electrical resistance relaxation of viscoelastic polymer nanocomposites

G. A. Madera; A. I. Oliva; A. I. Oliva-Avilés

doi:10.1557/s43579-023-00413-7

Effect of the carbon nanotube length on the electrical resistance relaxation of viscoelastic polymer nanocomposites

G. A. Madera, A. I. Oliva, A. I. Oliva-Avilés

Anahuac Mayab University

Research output: Contribution to journal › Article › peer-review

Abstract

The effect of carbon nanotube (CNT) length on the electrical resistance relaxation of CNT/polysulfone composites is investigated. CNTs were fragmented using controlled high-density energy via ultrasonic vibration. CNT/polysulfone composites were fabricated via solution casting technique, using non-fragmented and fragmented CNTs, and dedicated specimens were subjected to axial tension within the elastic regime. The electrical resistance of the composites was recorded with the aim of tracking the electrical signal during the viscoelastic relaxation. The experimental data were fitted to an electromechanical model inspired from the Burgers equation for polymers creep. Shorter CNTs promote higher electromechanical sensitivity during the mechanical relaxation. Graphical abstract: [Figure not available: see fulltext.]

Original language	English
Pages (from-to)	1144-1149
Number of pages	6
Journal	MRS Communications
Volume	13
Issue number	6
DOIs	https://doi.org/10.1557/s43579-023-00413-7
State	Published - 1 Dec 2023

Keywords

Composite
Electrical properties
Nanostructures
Piezoresponse
Polymer

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10.1557/s43579-023-00413-7

Cite this

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abstract = "The effect of carbon nanotube (CNT) length on the electrical resistance relaxation of CNT/polysulfone composites is investigated. CNTs were fragmented using controlled high-density energy via ultrasonic vibration. CNT/polysulfone composites were fabricated via solution casting technique, using non-fragmented and fragmented CNTs, and dedicated specimens were subjected to axial tension within the elastic regime. The electrical resistance of the composites was recorded with the aim of tracking the electrical signal during the viscoelastic relaxation. The experimental data were fitted to an electromechanical model inspired from the Burgers equation for polymers creep. Shorter CNTs promote higher electromechanical sensitivity during the mechanical relaxation. Graphical abstract: [Figure not available: see fulltext.]",

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AU - Madera, G. A.

AU - Oliva, A. I.

AU - Oliva-Avilés, A. I.

PY - 2023/12/1

Y1 - 2023/12/1

N2 - The effect of carbon nanotube (CNT) length on the electrical resistance relaxation of CNT/polysulfone composites is investigated. CNTs were fragmented using controlled high-density energy via ultrasonic vibration. CNT/polysulfone composites were fabricated via solution casting technique, using non-fragmented and fragmented CNTs, and dedicated specimens were subjected to axial tension within the elastic regime. The electrical resistance of the composites was recorded with the aim of tracking the electrical signal during the viscoelastic relaxation. The experimental data were fitted to an electromechanical model inspired from the Burgers equation for polymers creep. Shorter CNTs promote higher electromechanical sensitivity during the mechanical relaxation. Graphical abstract: [Figure not available: see fulltext.]

AB - The effect of carbon nanotube (CNT) length on the electrical resistance relaxation of CNT/polysulfone composites is investigated. CNTs were fragmented using controlled high-density energy via ultrasonic vibration. CNT/polysulfone composites were fabricated via solution casting technique, using non-fragmented and fragmented CNTs, and dedicated specimens were subjected to axial tension within the elastic regime. The electrical resistance of the composites was recorded with the aim of tracking the electrical signal during the viscoelastic relaxation. The experimental data were fitted to an electromechanical model inspired from the Burgers equation for polymers creep. Shorter CNTs promote higher electromechanical sensitivity during the mechanical relaxation. Graphical abstract: [Figure not available: see fulltext.]

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KW - Electrical properties

KW - Nanostructures

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Effect of the carbon nanotube length on the electrical resistance relaxation of viscoelastic polymer nanocomposites

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